Stainless Steel Funnel Hopper. Approximate capacity: 40 gallons. Hopper opening: 28.5 in. x 23 in. Straight wall dimensions: 28.5 in. x 23 in. x 12 in. Hopper overall dimensions: 30 in. L x 24 in. W x 30 in. H. Hopper wall thickness: 0.065 in. Port on bottom of hopper is rectangular flange: 4 ½ in. x 15 ¼ in. with 2 ¾ in. x 8 ¼ in. opening. Currently attached to flange is an adapter with a 3 in. bevel seat outlet. Attached to adapter is a 3 in. to 2 in. bevel seat reducer and elbow followed by a 2 in. bevel seat to 2 in. S-line adapter. Overall dimensions: 2 ft. 7 in. L x 2 ft. 1 in. W x 3 ft. 2 in. H.